@article{05241651, title = {Classical }, journal = {SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]}, volume = {4}, year = {2008}, zbl = {1143.17008}, language = {en}, url = {http://dml.mathdoc.fr/item/05241651} }
Skrypnyk, Taras V. Classical . SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only], Tome 4 (2008) . http://gdmltest.u-ga.fr/item/05241651/